2304720 has 160 divisors (see below), whose sum is σ = 8749440. Its totient is φ = 552960.

The previous prime is 2304691. The next prime is 2304721. The reversal of 2304720 is 274032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2304693 and 2304702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2304721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23712 + ... + 23808.

It is an arithmetic number, because the mean of its divisors is an integer number (54684).

2^2304720 is an apocalyptic number.

2304720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2304720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4374720).

2304720 is an abundant number, since it is smaller than the sum of its proper divisors (6444720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2304720 is a wasteful number, since it uses less digits than its factorization.

2304720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 2304720 is about 1518.1304291793. The cubic root of 2304720 is about 132.0908465531.

Adding to 2304720 its reverse (274032), we get a palindrome (2578752).

It can be divided in two parts, 230 and 4720, that added together give a triangular number (4950 = T₉₉).

The spelling of 2304720 in words is "two million, three hundred four thousand, seven hundred twenty".